1.The HCF of 15 and 20?
2.5!=??...

the h.c.f of 15and20 is 5

The answer is 5.

Explanation:

15:3×5

20:2×2×5

In both 15 and 20, '5' is in common. So, the numbers which are in common are called HCF ( Highest Common Factor ).

So, the HCF (well known as GCF ) of 15 and 20 will be 5.

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answer:

explanation:

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